CN217483751U - Valve rod sealing element performance test device - Google Patents
Valve rod sealing element performance test device Download PDFInfo
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- CN217483751U CN217483751U CN202221089087.0U CN202221089087U CN217483751U CN 217483751 U CN217483751 U CN 217483751U CN 202221089087 U CN202221089087 U CN 202221089087U CN 217483751 U CN217483751 U CN 217483751U
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Abstract
The utility model discloses a valve rod sealing member performance test device, include: the test device comprises a test body, a simulation valve rod structure and a sealing element gland; the test body is provided with two sealing grooves on two opposite side walls respectively, and is provided with a pressure access port; the bottoms of the two sealing grooves are communicated; a sealing element to be tested is respectively arranged in the two sealing grooves; the sealing part gland is covered on the notch of the sealing groove; the simulation valve rod structure penetrates through the installation through hole, the sealing element to be tested and the sealing groove; the pressure access port is communicated with the sealing groove. The utility model discloses a valve rod and the installation of the sealing member that awaits measuring of the installation simulation valve door of simulation valve rod structure and the sealing member that awaits measuring to accomplish analogue test and verify the reliability of the sealing member that awaits measuring, easy operation has improved test efficiency, simultaneously, test device simple structure. Furthermore, the utility model discloses a test device can once accomplish two sealing performance test of the sealing member that awaits measuring, has further improved test efficiency.
Description
Technical Field
The utility model belongs to the technical field of the valve seal test device, concretely relates to valve rod seal member performance test device.
Background
A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in piping or equipment by flowing or stopping the medium, and is widely used in the field of oil production. The sealing technology of the valve is the basis for detecting the superior performance of the valve and is also the key technology of the valve, and the sealing of the valve is the sealing between a valve plate and a valve seat, between the valve seat and a valve body, and between a valve cover and a valve rod. How to identify the performance of the sealing ring is an important ring. At present, when the sealing performance of the valve is detected, all parts of the valve need to be processed, and the performance of the sealing element is identified through a final assembly test, so that the sealing element needs to be replaced again if the performance of the sealing element has a problem, the sealing element is installed in the valve again, a verification test is carried out again, the operation of the test process is complex, and the test efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem existing in the prior art, the utility model provides a valve rod sealing member performance test device. The to-be-solved technical problem of the utility model is realized through following technical scheme:
a valve stem seal performance testing apparatus comprising: the test device comprises a test body, a simulation valve rod structure and a sealing element gland;
two opposite side walls of the test body are respectively provided with a sealing groove and a pressure access port;
the groove bottoms of the two sealing grooves are communicated;
a sealing element to be tested is respectively arranged in the two sealing grooves; a gap is formed between the sealing element to be tested and the groove bottom of the sealing groove;
the sealing element gland is provided with a mounting through hole and is covered on the notch of the sealing groove;
the simulated valve rod structure penetrates through the mounting through hole, the sealing element to be tested and the sealing groove;
the pressure access port is communicated with the sealing groove and is located on one side, back to the sealing gland, of the sealing element to be tested.
In one embodiment of the utility model, the utility model also comprises a temperature measuring joint;
the testing body is provided with a mounting groove, the temperature measuring connector is fixedly arranged on the mounting groove, and the temperature measuring connector is electrically connected with an external temperature sensor.
In an embodiment of the present invention, the simulated valve rod structure has a through hole formed on a rod portion near the end portion.
In an embodiment of the present invention, the pressure inlet is communicated with the sealing groove through an overflow through hole; the overflowing through hole is positioned on the test body.
In an embodiment of the present invention, the sealing gland is threadedly connected to the sealing groove.
In an embodiment of the present invention, the sealing member is a sealing ring.
The utility model has the advantages that:
the utility model discloses a sealing member and the installation of simulation valve rod structure to be measured, and install in the seal groove, insert the mouth through pressure and let in the external pressure source in to the seal groove, thereby whether have the leakage to carry out the sealing performance test of the sealing member that awaits measuring between through observing between sealing member gland and the simulation valve rod and between sealing member gland and the experimental body, therefore, can break away from the sealing member that awaits measuring and other parts of valve product and test, and the valve rod of the installation simulation valve door through simulation valve rod structure and the sealing member that awaits measuring and the installation of the sealing member that awaits measuring, thereby accomplish the simulation test and verify the reliability of the sealing member that awaits measuring, the operation is simple, the test efficiency is improved, and simultaneously, the testing arrangement simple structure.
Furthermore, the utility model discloses a test device can once accomplish two sealing performance test of the sealing member that awaits measuring, has further improved test efficiency.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of a valve rod sealing member performance testing apparatus provided by an embodiment of the present invention.
Description of reference numerals:
10-test body; 11-a seal groove; 12-pressure access; 13-an over-current via; 20-simulating a valve stem configuration; 21-a through hole; 30-a seal gland; 40-a seal to be tested; 50-temperature measuring joint.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.
Referring to fig. 1, a valve stem seal performance testing apparatus includes: test body 10, simulated valve stem structure 20 and seal gland 30. Two opposite side walls of the test body 10 are respectively provided with a sealing groove 11, and the test body 10 is further provided with a pressure inlet 12. The groove bottoms of the two seal grooves 11 are communicated. An outer seal 40 to be tested is arranged in each of the two sealing grooves 11. The seal 40 to be tested has a gap with the groove bottom of the sealing groove 11, which gap serves to receive pressure fluid of an external pressure source device connected in. The sealing gland 30 is provided with a mounting through hole, and the sealing gland 30 is covered on the notch of the sealing groove 11. The dummy stem structure 20 passes through the mounting through-hole, the seal 40 to be tested and the seal groove 11. The pressure inlet 12 is communicated with the sealing groove 11, and the pressure inlet 12 is located on one side of the sealing element 40 to be tested, which is opposite to the sealing element gland 30. Wherein, the sealing member 40 to be measured is a sealing ring.
The pressure inlet 12 communicates with the seal groove 11 through the flow passage hole 13. The test body 10 is provided with an overflowing through hole 13, one end of the overflowing through hole 13 is communicated with the pressure access port 12, the other end of the overflowing through hole is communicated with the groove bottom communication positions of the two seal grooves 11, and pressure liquid of external pressure source equipment can enter the pressure access port 12 and enter the overflowing through hole 13, so that the pressure liquid enters a gap between the seal groove 11 in the seal groove 11 and the to-be-tested sealing element 40 after entering the communication positions of the two seal grooves 11.
In this embodiment, two sealing members 40 to be tested are respectively pressed into two sealing grooves 11 by an installation tool, a sealing member gland 30 is respectively installed, then the simulated valve rod structure 20 is pressed into the simulated valve rod structure 20, so that the simulated valve rod structure 20 and the sealing member 40 to be tested form a sealing fit and are in a floating state, a pressure inlet 12 is connected with a connector of an external pressure source device, pressure liquid is conveyed into a gap between the groove bottom in the sealing groove 11 and the sealing member 40 to be tested, by observing whether leakage exists between the sealing member gland 30 and the simulated valve rod and between the sealing member gland 30 and the test body 10, if no leakage exists (pressure liquid is sealed in the gap between the sealing member 40 to be tested and the sealing groove 11), the sealing performance of the sealing member 40 to be tested is qualified, if leakage occurs (pressure liquid will flow out towards the sealing member gland 30 from between the sealing member 40 to be tested and the simulated valve rod structure 20), the sealing performance of the seal 40 to be tested is not satisfactory. The sealing gland 30 and the sealing groove 11 are connected in a threaded manner and are not in sealing connection, and the simulated valve rod structure 20 and the sealing gland 30 are not in sealing installation.
Therefore, during the test, the sealing element 40 to be tested is separated from other parts of the valve product to carry out the sealing test, and the installation of the valve rod of the valve and the sealing element 40 to be tested is simulated through the simulation valve rod structure 20 and the installation of the sealing element 40 to be tested, so that the reliability of the sealing element 40 to be tested is verified through the simulation test, the operation is simple, the test efficiency is improved, and meanwhile, the test device is simple in structure. Furthermore, the utility model discloses a test device can once accomplish two sealing performance test of the sealing member 40 that awaits measuring, has further improved test efficiency, the experimental requirement of valve rod of adaptable same end distance and same latus rectum.
Wherein, a through hole 21 is opened on the rod part of the analog valve rod structure 20 near the end. An operating rod penetrates into the through hole 21, and the operating rod is rotated to drive the simulation valve rod structure 20 to rotate, so that the simulation valve rod structure 20 and the sealing element 40 to be tested are in a floating state.
Further, a valve rod sealing element performance test device also comprises a temperature measuring connector 50. The test body 10 is provided with a mounting groove, and the temperature measuring connector 50 is fixedly arranged on the mounting groove. One end of the temperature measuring connector 50 is located in the mounting groove, and the other end of the temperature measuring connector extends to the mounting groove and is electrically connected with an external temperature sensor. When carrying out sealing performance test under the different temperature environment, can put into the proof box that can provide different temperature environment with testing arrangement, connect temperature sensor with temperature measurement joint 50, temperature sensor can show the temperature of experimental body 10 in real time, can be at the temperature of experimental body 10 of in-process observation to sealing member 40 that awaits measuring carries out sealing performance test under the different temperatures.
The utility model discloses an experimental operation process as follows:
1. the test body 10 was cleaned.
2. After cleaning the sealing member 40 to be measured, a layer of grease is coated on the inner and outer diameters, and the grease is pressed into the sealing position in the sealing groove 11 by using an installation tool, so that any part is not required to be damaged.
3. Seal gland 30 is installed at both ends of the test body 10.
4. After the simulated valve stem structure 20 is cleaned, a layer of grease is applied and pressed into the test apparatus, with the exposed lengths at both ends being approximately the same.
5. And (3) penetrating the through hole 21 on the simulation valve rod structure 20 by using an operating rod, and slightly rotating the simulation valve rod structure 20 to enable the simulation valve rod structure 20 and the sealing element 40 to be tested to be in a floating state.
6. The temperature measuring connector 50 is installed on the installation groove of the test body 10, and the other end is connected to the temperature sensor.
7. And (3) connecting the pressure source equipment to the pressure inlet 12 of the test body 10, and testing two groups of sealing elements 40 to be tested at one time.
8. If high and low temperature tests are to be carried out, the whole device is put into a high and low temperature test chamber to test the performance of the sealing element 40 to be tested in a high and low temperature state.
It should be noted that, the simulated valve rod structure 20 is used for simulating the valve rod of an actual product, the diameter of the sealing part of the simulated valve rod structure is consistent with the diameter of an actual terminal valve product, the roughness of the sealing part is the same as the requirement of the actual terminal valve product, the front chamfer of the simulated valve rod structure is smooth and transitional, no burr or bulge exists, the orifice of the through hole 21 is smooth and polished, and the sealing element 40 to be tested is not scratched, and the through hole 21 is used for shifting the simulated valve rod structure 20 to verify the sealing performance of the valve rod under the condition of movement; the sealing part gland 30 is processed by using a formal product drawing to ensure consistency; the sizes of the thread and the sealing groove 11 of the test body 10 are completely consistent with the sizes of the corresponding parts of the valve cover, and the roughness requirement is consistent with the drawing; one end of the temperature measuring joint 50 extends into the test body 10 to obtain the actual temperature of the body, and the other end is connected with a temperature sensor to display the temperature condition of the device in real time; the sealing member 40 to be measured is installed in the sealing groove 11 in a floating state.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. A valve stem seal performance testing device, comprising: the test device comprises a test body (10), a simulation valve rod structure (20) and a sealing gland (30);
two opposite side walls of the test body (10) are respectively provided with a sealing groove (11) and a pressure access port (12);
the groove bottoms of the two sealing grooves (11) are communicated;
a sealing element (40) to be tested is arranged in each of the two sealing grooves (11); a gap is formed between the sealing element (40) to be tested and the groove bottom of the sealing groove (11);
the sealing element gland (30) is provided with a mounting through hole and covers the notch of the sealing groove (11);
the simulated valve rod structure (20) penetrates through the installation through hole, the sealing element (40) to be tested and the sealing groove (11);
the pressure access port (12) is communicated with the sealing groove (11) and is positioned on one side, back to the sealing gland (30), of the sealing element (40) to be tested.
2. The valve stem seal performance testing device of claim 1, further comprising a temperature measuring connector (50);
the test device is characterized in that a mounting groove is formed in the test body (10), the temperature measuring connector (50) is fixedly arranged on the mounting groove, and the temperature measuring connector (50) is electrically connected with an external temperature sensor.
3. The valve rod sealing member performance testing device according to claim 1, wherein the rod part of the simulated valve rod structure (20) near the end is provided with a through hole (21).
4. The valve rod sealing element performance testing device is characterized in that the pressure inlet (12) is communicated with the sealing groove (11) through a flow through hole (13); the overflowing through hole (13) is positioned on the test body (10).
5. The valve stem seal performance testing device of claim 1, wherein the seal gland (30) is in threaded connection with the seal groove (11).
6. The valve stem seal performance testing device of claim 1, wherein the seal is a gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221089087.0U CN217483751U (en) | 2022-05-07 | 2022-05-07 | Valve rod sealing element performance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221089087.0U CN217483751U (en) | 2022-05-07 | 2022-05-07 | Valve rod sealing element performance test device |
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| Publication Number | Publication Date |
|---|---|
| CN217483751U true CN217483751U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221089087.0U Active CN217483751U (en) | 2022-05-07 | 2022-05-07 | Valve rod sealing element performance test device |
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| CN (1) | CN217483751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793592A (en) * | 2023-08-28 | 2023-09-22 | 成都成高阀门股份有限公司 | Sealing element inspection device and detection method thereof |
-
2022
- 2022-05-07 CN CN202221089087.0U patent/CN217483751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793592A (en) * | 2023-08-28 | 2023-09-22 | 成都成高阀门股份有限公司 | Sealing element inspection device and detection method thereof |
| CN116793592B (en) * | 2023-08-28 | 2023-11-21 | 成都成高阀门股份有限公司 | Sealing element detection method by using sealing element detection device |
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